Clean Water Act discharge permit · NPDES TX0128210
NW HARRIS COUNTY MUD 5 PLANT 2, Houston, TX: NPDES TX0128210 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 40Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
NW HARRIS COUNTY MUD 5 PLANT 2, held by NORTHWEST HARRIS COUNTY MUD 5, holds NPDES permit TX0128210, which discharges to Hcfcff No. K142-08-00, Faulkey Gullk;Cypress Ck. EPA’s file records it issued August 13, 2018 and expiring August 13, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NW HARRIS COUNTY MUD 5 PLANT 2 |
|---|---|
| Permittee as filed | NORTHWEST HARRIS COUNTY MUD 5 |
| NPDES ID | TX0128210 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 13, 2018 |
| Expiration date | August 13, 2023 |
| Address | Houston, TX 77429 |
| Receiving water | HCFCFF NO. K142-08-00, FAULKEY GULLK;CYPRESS CK |
| Subwatershed | Marshall Lake-Cypress Creek (HUC 120401020106) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 40Pollutants on file
- 40Under a numeric limit
- 10With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Bromodichloromethane | 6 | 6 | 6 | December 31, 2022 | 132% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 10 | 4 | May 31, 2018 | 11% over the limit |
| E. coli | 2 | 10 | 4 | November 30, 2025 | 585% over the limit |
| Chloride [as Cl] | 3 | 24 | 0 | ||
| Solids, total suspended | 3 | 9 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 9 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 3 | 9 | 0 | ||
| pH | 3 | 6 | 0 | ||
| Chlorine, total residual | 2 | 6 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 3 | 0 | ||
| Arsenic, dry weight | 5 | 0 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 0 | 0 | ||
| Selenium, dry weight | 3 | 0 | 0 | ||
| Copper, dry weight | 3 | 0 | 0 | ||
| Cadmium, dry weight | 3 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 0 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 0 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 0 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 0 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Level of pathogen requirements achieved | 2 | 0 | 0 | ||
| Description of pathogen option used | 2 | 0 | 0 | ||
| Vector attraction reduction alternative used | 2 | 0 | 0 | ||
| Fecal coliform | 1 | 0 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 0 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 0 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 0 | 0 | ||
| Annual amt of sludge incinerated | 1 | 0 | 0 | ||
| Annual sludge production, total | 1 | 0 | 0 | ||
| Annual amount of sludge land applied | 1 | 0 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 0 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 0 | 0 | ||
| Annual amt sludge transported interstate | 1 | 0 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 0 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 0 | 0 | ||
| Boundary areas | 1 | 0 | 0 | ||
| Salmonella | 1 | 0 | 0 | ||
| Pollutant table from 503.13 | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 5, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.